I think that the Siri port for iPhone 4 now makes the 4 very competitive with the 4S... unless you really want that better camera and processor. I just bought the 4S and was thinking it may be worth exchanging for the 4... but I'm wondering if this Siri hack will last long. There have been plenty of articles coming out about how 5.0.1 made it "legal" to apply the Siri hack, but what if that changes?? And isn't the 4's hacked Siri communicating with Apple through a proxy server? What happens if that goes down?